ASTROSAT CZTI

Data Quality Report

Orbit 24073

Creation date: 2024-06-27T19:01:47.890870
Switch to: Orbit-wise | Merged OBSID-wise
web.py, SVN revision $Rev$

Source files: Data quality report (detailed, human readable) | Data quality report (concise, machine readable)

Observation information


Basic statistics of files

Param Original file Final file
FilenamemodeM0/AS1A07_165T01_9000003558_24073cztM0_level2.evt modeM0/AS1A07_165T01_9000003558_24073cztM0_level2_quad_clean.evt
Size (bytes)465,108,480124,430,400
Size443.6 MB 118.7 MB
Events in quadrant A2,938,533860,265
Events in quadrant B2,985,806873,588
Events in quadrant C4,230,719792,674
Events in quadrant D3,526,283826,147

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0120
B0120
C0120
D0120

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0122961
B0123761
C0161661
D0142711

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01200
B01200
C01200
D01200

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A5957741.242236%
B5958681.141323%
C595866111.094327%
D5957570.956857%

Noise dominated fraction

Noise dominated data is calculated using 1-second bins in cleaned event files. If a bin has >2000 counts, and if more than 50% of those come from <1% of pixels, then it is considered to be noise-dominated and hence unusable.

Quadrant # 1 sec bins Bins with >0 counts Bins with >2000 counts High rate bins dominated by noise Noise dominated (total time) Noise dominated (detector-on time) Marked lightcurve
A 7112 5957 0 0 0.00% 0.00%
B 7113 5959 1 1 0.01% 0.02%
C 7113 5959 538 538 7.56% 9.03%
D 7112 5958 3 3 0.04% 0.05%

Top noisy pixels

Top three noisy pixels from each quadrant. If the there are fewer than three noisy pixels in the level2.evt file, extra rows are filled as -1

Pixel properties Quadrant properties
Quadrant DetID PixID Counts Sigma Mean Median Sigma
A 3 1 20774 133.49 755 744 150.0
A 13 254 9654 59.38 755 744 150.0
A 0 226 6770 40.16 755 744 150.0
B 12 111 15873 109.31 747 730 138.5
B 0 228 14140 96.8 747 730 138.5
B 11 111 14096 96.49 747 730 138.5
C 10 9 1407801 8823.72 689 694 159.5
C 14 238 111459 694.59 689 694 159.5
C 0 239 16973 102.08 689 694 159.5
D 8 195 571349 3244.48 734 712 175.9
D 1 52 150229 850.11 734 712 175.9
D 2 234 28560 158.34 734 712 175.9

Detector plane histogram (DPH)

Histogram calculated using DETX and DETY for each event in the final _common_clean file

Quadrant A Quadrant B
Quadrant D Quadrant C

Count rate plots and images

Plot type Count rate plots Images
Comparison with Poisson distribution
Blue bars denote a histogram of data divided into 1 sec bins.
Red curve is a Poisson curve with rate = median count rate of data.
Quadrant-wise count rates
Data is divided into 100 sec bins
Module-wise count rates for Quadrant A
Data is divided into 100 sec bins
Module-wise count rates for Quadrant B
Data is divided into 100 sec bins
Module-wise count rates for Quadrant C
Data is divided into 100 sec bins
Module-wise count rates for Quadrant D
Data is divided into 100 sec bins

Housekeeping plots

Parameter Plot
CZT HV Monitor
D_VDD
Temperature 1
Veto HV Monitor
Veto LLD
Alpha Counter
_CPM_Rate
CZT Counter
+2.5 Volts monitor
+5 Volts monitor
_ROLL_ROT
_Roll_DEC
_Roll_RA
Veto Counter